6 
HYPOPLASTIC DISEASES 
Caused by fungi PAGE 
Downy Mildew of GrapeS........-eseeee cece renner rr snneeeeeeeececees 109 
Downy Mildews of the Ranunculacese ........ssseeeeeereser sree steees a 113 
Powdery Mildews of Florists’ Crops........+..s++eseeeereecseerreneeees 117 
Powdery Mildew of Cereals and Grasses. ......++++eeesreeerrereerereres 120 
Powdery Mildews of Trees and Fruits ........0++-eeesereeeseseereesress 123 
Apple Scab..........:seeee cree eee cn eee se renee sere seneecen ences ees 128 
Ergot of Rye.........-+--0+- Bas on TUT alae eat gud wig viel Slama ayeiateid SaaS OER SI 132 
Onion Smut. ..... cece cece cee eee teen e eee nen aneneneeeresar eens 135 
Loose Smut of Wheat. ......ccece cece eee e eee e ees nsec reece enrsnarees 137 
Loose Smut of Oats... 20. cee cece ec cere ee ence een ence cer ernereeees 139 
Stinking Smut of Wheat. ..........ee cece eee eee eee e ence ee pee seeees 141 
Asparagus Rust 1.2.0. .0 60 cece ence teen ee eee nent eee ee seen ene ce ces 143 
Black Stem-rust of Cereals and Grasses....... see eeeeceec eee eereeeees 148 
Carnation Rust..... w Sh fig lads wate aii acc RSA HORS WRU Nes FSoea ne wacaRe SE I 153 
Caused by phanerogams 
Dodder 2.02... c cece cece cece nec een e ence nese seen een en eae eeeceees 155 
Cause, not an organism 7 
Tobacco Mosaic....... 0c eect cece e een e eee e een eeeeneeeseeenes 158 
METAPLASTIC DISEASES 
Caused by slime-molds 
Spongospora Scab of PotatoeS....... 0.0 e eee centre teen ete ne rene enes 162 
Club-root of Crucifers ......... 0c ccc cect cece eee n ene ee en ee eenaeeesees 166 
Caused by bacteria 
Legume Tibercles) wx 5 ss. 5.acss & ss stapes ois andere a sienna! ee Bieseee = ater nid eee wnetere oie 170 
Caused by fungi 
Peach Leaf-curl...........:.c ec eeeceecee sence Prijs sre aaede «Wawa uate 173 
beat-blisteniok Oaks). iso. cs ueced- Gb aueddc Gasd ose cds teca'ds Slee eA S88 a tae 176 
Black Knot of Plumsand Cherries... 0.0... ccc cece ccs e cece cece eeseeeees 178 
Cort SMU. sec iis sale eee she yee Bate Taeete 2 RORY Ceelele aoa 181 
Hollyhock-Rust ii siecle oe chotonc aera Gitea so weonnte Gergana oa aeege) Ss eg oe ekeweg + etwiee 184 
Rust:of Cedarand Apple. ¢ sj.:0 css way 25 4 wee oo HOES S RSW Kens Mee aee Os 187 
Blister-rust of White Pine.......... cc ee cee cece cent mere tere nesereees 190 
Caused by phanerogams 
Mistletoe of Junipers ........... ec ccc cece r cece cer uceceesees Bcystisea te 194 
Cause, not an organism 
Oboe sce vay dues ta esa einen Beeb Gaia avonie esas a's HEIR S.eiwrew 4 ater . 195 
MISCELLANEOUS 
Term-paper Subjects................ ee ee ree wvimewsseawee 196 
GIOSEATY 3 shia stin sare cvtten ed erent die adverts Meche R es MEMOS AL SK eather eee 205 
